Definition
An airport-specific chart that depicts the designated taxi routes, hold positions, and movement guidance used during Surface Movement Guidance Control System (SMGCS) operations when runway visual range (RVR) is 1,200 feet or less. It shows the routes pilots must follow between runways and ramps in low visibility, along with the lighting, markings, and signage that support those routes.
Plain English
A special airport map that shows pilots exactly which taxi paths to use when fog or other conditions make it hard to see. It keeps everyone on a known route so aircraft don't get lost or wander onto the wrong taxiway or runway.
Context Anchor
Pilots encounter this chart when operating at larger airports that have published procedures for taxiing in fog, heavy precipitation, darkness, or other conditions where seeing across the airport surface is difficult.
Why Pilots Care
Following the chart prevents runway incursions and maintains safe separation between aircraft and vehicles when normal visual references are unavailable.
Grounding Statement
When you cannot see far on the airport surface, the chart gives you a planned, approved path to follow instead of relying only on what you can see out the window.
Intuition Check
Do not think of this as just a normal airport map with poor-weather notes. It is specifically for approved ground movement when visibility is low, and it shows the routes and stopping points that matter in those conditions.
Example Sentence 1
Before pushback, the captain pulled out the low visibility taxi route chart because the field was reporting RVR 800.
Example Sentence 2
The controller instructed us to follow the low visibility taxi route chart to the designated hold point.